World-LeadingBridgeTheHongKong-Zhuhai-MacaoBridgeTheworld'slongestsea-spanningbridge,thehighway-railwaybridgewiththelongestspanintheworld,thefirstsea-spanningdual-usebridgeintheworl（-thesearejustsomeofthe“worldfirsts”Chinahascreatedinthesphereofbridgebuilding.ButtheonewhichbestrepresentsChina'smodernindustrialpoweristheHongKong-Zhuhai-MacaoBridge.TheconstructionoftheHongKong-Zhuhai-MacaoBridgebeganonDecember15,2009.Assoonastheceremonyforthecommencementoftheprojectwasover,thechiefengineer,SuQuanke（蘇權(quán)科）,convenedameetingatwhichhelaidoutahigh-speedplanfortheconstructionwork.EngineerLinwasthefirsttospeak:“ThetopologicalfeaturesofthesitefortheHongKong-Zhuhai-MacaoBridgeareveryspecial:ThebridgewillspanthebusiestsealaneinLingdingyngBay,andpossiblyblockitatitsnarrowestpart.Also,itwillbebuiltnearabusyairport.Sowehavetobuilditinawaythatdoesnotinterferewitheitherseaorairtraffic,dcfnwe?”Theconferencehallfellsilentasthedelegatesalllookedateachother.Alltheplanstheycameupwithhadsomeflaworother.Insidetheconferencehall,sighscouldbeheard,andSuQuankehimselfwasrackedwithanxiety,whenhisgazehappenedtofallonaphotographofanancientChinesebridgewhichwaslyingonadesk—whynotgetinspirationfromtheexperienceofancientChinesebridgebuilders?Chinahasamultiplicityofcomplicatedriversandlandforms,andtheancientstooklocalconditionsintoaccountandusedlocalresourcestoensureaperfectadditiontoNature.Excitedly,SuQuankesharedhisideawiththeotherengineers：Whydon'tweworkinharmonywiththelocalnaturalconditions?Now,thebearingcapacityofthebridgewillbeexcessiveifwebuilditdirectlyacrossthesea,andtheseaitselfherehasmanywindingbays,sowhydoiitwebuildthebridgetoconnectseveraldifferentspots,andthusensureunimpededtransportationbothontheseaandintheair?”Evenbeforehiswordshaddiedaway,hiscolleaguesstartedtoapplaud.ThiswasthefirstinstanceofinnovativeobjectivethinkinginChinesebridgebuilding,basedontherichheritageofChinesebridgebuilding.Althoughtheproblemofthedesignforthestructureofthebridgehadbeenovercome,therestillremainedmanydifficultiesconcerningitsactualconstruction.Forinstance,therewerethirty-threesectionsoftunneltobejoinedup.Whenthefirstsectionwaslaid,nobodywasconfidentthatitcouldbeplacedintheproperposition,becausethiswasthefirstattempttodothisinthehistoryofChinesebridgebuilding,and,infact,itwouldbethefirstattemptintheworld.Theengineersdidnotdaremaketheslightestslip.Ittookninety-sixcontinuoushourstolaythefirstsection.Whenitwasfinallyperfectlyplacedinitsdesignatedposition,someoftheworkersweresotiredthattheyslumpedtothegroundandsleptrightawaywheretheylay.Finally,afterinnumerabledifficultieshadbeenovercome,onJuly7,2017theHongKong-Zhuhai-MacaoBridgewasfullyopened.Seenfromtheair,thewindingbridgelookslikealongdragon.FromZhuhaiBay,thebridgestretchesforoverthirtykilometersabovethesea,togetherwithsix-point-sevenkilometersoftunnelsundertheseabed,toendinHongKong.Ontheway,therearethreespeciallymodeledcable-stayedbridges,named“ChinaConnection,”“Dolphin”and“Sail,”respectively,capableofsustainingatotalofthreehundredthousandtonsofwheeledcargo.SuQuankeremarked,“Thebridgenotonlylinksthethreegeographicalregions,italsoformsalinkbetweenourthoughtsandfeelings,includingthecreativesuperioritywehavedevelopedovercenturies.”Whenwelookatthismagnificentsea-spanningbridge,asagreatachievementofthecentury,wecanseeacombinationofthemillennia-longhistoryofbridgebuildinginChinaandmoderntechnology,andtheglitteroftheChinesepeople'sdiligenceandwisdom.TheMoralofThisStoryChina'smodernbridgeconstructionisnotjustanembodimentofthedevelopmentofmodernindustrialtechnology.ItisevenmoreanexpressionofthedevelopmentoftheheritageofChina'sbridge-buildingindustryandculture.ItmanifestsChina'shistoricalheritage,spiritofdeterminationtoovercomedifficulties,andboldnessinapioneeringway.現(xiàn)代橋梁屢創(chuàng)“世界第一”的港珠澳大橋世界最長跨海大橋、跨度最大的公路鐵路兩用橋、首座公路鐵路兩用跨海大橋……中國橋梁界為世界橋梁創(chuàng)造了眾多的“世界第一”，而其中最能代表中國現(xiàn)代工業(yè)實力的，當屬港珠澳大橋。2009年12月15日，港珠澳大橋正式投入建造。開工儀式剛一結(jié)束，總工程師蘇權(quán)科立刻召開了會議，爭分奪秒地進行工程部署。工程師小林首先發(fā)言：“港珠澳大橋所處的地理位置條件十分特殊。伶仃洋上有黃金海運航線，大橋可能將其攔腰斬斷；而且，大橋選址鄰近機場，是繁忙的空中航道。大橋該如何修建，才能不影響航道和航班呢？”大家面面相覷，會議室里一片沉默。大家提出了好幾個方案，卻都存在問題。會議室內(nèi)傳來嘆氣聲，蘇權(quán)科心中有些焦急，目光卻落在了桌面中國古橋的照片上一為什么不從中國古老造橋經(jīng)驗中獲取靈感呢？中國河流地域眾多，情況復(fù)雜多變，古人因地制宜、就地取材，方能巧奪天工。蘇權(quán)科興奮地與工程師們交流了自己的想法：“我們何不與自然條件‘言和’呢？既然大橋平直走向受力過大，那就順著海水的流向，多拐幾個彎；為了保證空中與海上的航道暢通，大橋也可以在不同的位置設(shè)置海上與海下的不同通道呀！”話音未落，大家情不自禁地鼓起掌來。蘇權(quán)科的創(chuàng)意是中國對橋梁外觀設(shè)計思想的一次提升，這個提升來自中國橋梁文化豐厚的底蘊。雖然解決了橋梁構(gòu)造設(shè)計的難題，實際建造中仍然面臨許多困難。隧道由33節(jié)沉管和最終接頭組成，第一節(jié)沉管運到安裝現(xiàn)場時，每個人心里都沒有底。這是中國橋梁史上的第一次嘗試，也是世界的第一步。工程師們都不敢有絲毫懈怠。第一次沉放持續(xù)了整整96個小時，當沉管最終嚴絲合縫地沉放到預(yù)定位置時，有的人立刻就坐到了地上，七倒八歪地睡著了……最終，工程師們克服了一個又一個難題，港珠澳大橋于2017年7月7日實現(xiàn)了全面貫通。從空中俯瞰大橋，那逶迤的橋身如一條長龍，從珠海洪灣這端起，穿行三十多公里后消失于海中，經(jīng)過海底6.7公里的隧道穿行，再次躍出水面，直達香港。同時，